Issue 8, 2009

Measurement of vapour pressures of ionic liquids and other low vapour pressure solvents

Abstract

The vapour pressures of several ionic liquids, liquid polymers and derivatives of glycerol were investigated by thermogravimetric analysis (TGA). The experimental method is described and discussed. Vapour pressure data for various solvents with low vapour pressures are reported at 100–120 °C. The thermogravimetric method for vapour pressure measurement is useful for the rapid screening of solvents. Ionic liquids have a low but detectable vapour pressure at 100–120 °C. The vapour pressures of liquid polymers such as poly(ethylenimine) and polyethylene glycols are in the same range, which might make these substances a less expensive alternative to ionic liquids.

Graphical abstract: Measurement of vapour pressures of ionic liquids and other low vapour pressure solvents

Supplementary files

Additions and corrections

Article information

Article type
Paper
Submitted
04 Mar 2009
Accepted
11 May 2009
First published
02 Jun 2009

Green Chem., 2009,11, 1217-1221

Measurement of vapour pressures of ionic liquids and other low vapour pressure solvents

O. Aschenbrenner, S. Supasitmongkol, M. Taylor and P. Styring, Green Chem., 2009, 11, 1217 DOI: 10.1039/B904407H

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